Overview
The TPS53353DQPR is a high-efficiency, 20-A synchronous buck converter produced by Texas Instruments. This device is part of the SWIFT™ power product family and is designed for low output voltage point-of-load applications in computing, networking, and other digital systems. It features an eco-mode operation, which enhances efficiency during light load conditions. The converter is known for its ease of use, low external component count, and space-conscious design, making it ideal for modern power systems.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 1.5 V to 15 V |
| Output Current | Up to 20 A |
| Output Voltage Range | 0.6 V to 5.5 V |
| Switching Frequency | Selectable via RF pin (up to 1 MHz) |
| Integrated MOSFETs | 5-mΩ (high-side), 2-mΩ (low-side) |
| Reference Voltage Accuracy | 1% accurate 0.6 V reference |
| Package Type | 22-pin QFN with PowerPAD™ |
| Junction Temperature Range | -40°C to 125°C |
| Thermal Resistance (Junction-to-Ambient) | 27.2°C/W |
Key Features
- High-efficiency synchronous buck converter with eco-mode for enhanced light load efficiency.
- D-CAP™ mode control with adaptive on-time architecture, eliminating the need for an external phase compensation network.
- Integrated 5-mΩ (high-side) and 2-mΩ (low-side) MOSFETs.
- Accurate 1% 0.6 V reference voltage.
- Selectable switching frequency via RF pin.
- Auto-skip mode and forced continuous conduction mode (FCCM) for light load conditions.
- Open-drain power-good indication.
- Undervoltage, UVLO, and overtemperature protection.
- Supports all ceramic output capacitors.
- 22-pin QFN package with PowerPAD™ for improved thermal performance.
Applications
- Enterprise servers and storage systems.
- Wired networking switches and routers.
- ASIC, SoC, FPGA, DSP core, and I/O voltage supplies.
- Point-of-load applications in computing and digital consumer electronics.
Q & A
- What is the input voltage range of the TPS53353DQPR?
The input voltage range is from 1.5 V to 15 V.
- What is the maximum output current of the TPS53353DQPR?
The maximum output current is up to 20 A.
- What is the output voltage range of the TPS53353DQPR?
The output voltage range is from 0.6 V to 5.5 V.
- What is the D-CAP™ mode in the TPS53353DQPR?
The D-CAP™ mode is a control scheme that uses the equivalent series resistance (ESR) of the output capacitor(s) to sense the device current, eliminating the need for an external phase compensation network.
- What are the key protection features of the TPS53353DQPR?
The device features undervoltage, UVLO, and overtemperature protection.
- What is the package type of the TPS53353DQPR?
The package type is a 22-pin QFN with PowerPAD™.
- What are the typical applications of the TPS53353DQPR?
Typical applications include enterprise servers, wired networking switches and routers, and point-of-load applications in computing and digital consumer electronics.
- How does the TPS53353DQPR handle light load conditions?
The device can operate in auto-skip mode or forced continuous conduction mode (FCCM) for light load conditions, and it also features an eco-mode for enhanced efficiency.
- What is the thermal resistance (junction-to-ambient) of the TPS53353DQPR?
The thermal resistance (junction-to-ambient) is 27.2°C/W.
- Is the TPS53353DQPR RoHS compatible?
Yes, the TPS53353DQPR is RoHS compatible.
